Gene Expression

Question 1

Each gene has different possible forms called:

Answer 1

Alleles

Question 2

What are alleles?

Answer 2

pairs of alleles determine a particular characteristic, one is dominant and the other is recessive

Question 3

Define dominant and recessive alleles

Answer 3

each are represented through physical characteristics of the individual

dominant: represented by “B”
recessive: represented by “b”, only represented if dominant allele is absent

Question 4

Define genotype and phenotype

Answer 4

genotype: genetic makeup of individual (BB, bb or Bb)
phenotype: physical appearance of individual

Question 5

Principle of dominance

Answer 5

when individuals with different alleles reproduce, offspring will only express dominant trait

Question 6

Law of segregation

Answer 6

each gene (allele) separates from the other so offspring will get only one gene from each parent